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Finding the Fourth Proportional to 219,907.35, 329,867.19 and 77,732.55

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Solution

The fourth proportional to 219,907.35, 329,867.19 and 77,732.55 is: 116,601.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,907.35 : 329,867.19 = 77,732.55 : x
  2. Step 2: Convert to fraction form
    219,907.35/329,867.19 = 77,732.55/x
  3. Step 3: Cross multiply
    219,907.35x = 329,867.19 × 77,732.55
  4. Step 4: Simplify right side
    219,907.35x = 25,641,417,840.03
  5. Step 5: Solve for x
    x = 25,641,417,840.03/219,907.35
  6. Step 6: Final answer
    x = 116,601.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.